PHP Array Common functions

Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Get the key name of the arrayArray_flip ($arr); The values in the array are interchanged with the key names (if

PHP faster way to implement the array to weight

OverviewFunctions that use PHP array_unique() allow you to pass an array and then remove the duplicate values, returning an array with unique values. This function works very well in most cases. However, if you try to use a function in a large array

PHP two-dimensional array sorting can be sorted by specified key value

PHPHeader("Content-type:utf-8");$arr=Array( 0 =Array( ' Name ' = ' International crude oil price ', ' url_pinyin ' = ' kucun ', ), 1 =Array( ' Name ' = ' crude oil ', ' url_pinyin ' = ' jiage ', ), 2 =Array(

Reproduced PHP threads, processes, and concurrency

Reprinted from http://chenpeng.info/html/3021ProcessWhat is the process? A process is an executing program, a process is an instance of a program that is executing on a computer, and a process is an entity that can be assigned to the processor and

Using JSON in the PHP language

Original:Http://www.ruanyifeng.com/blog/2011/01/json_in_php.html------------------------------------------------------------------------NanyiDate: January 14, 2011Currently, JSON has become one of the most popular formats for data interchange, with

Under Windows configuration nginx+php (WNMP)

The first part: preparation work. (System: Windows 8.1)1. First, download the software.NGINX-1.3.8 official website Download: http://nginx.org/en/download.htmlPHP5.4.8 version: http://windows.php.net/download/Mysql5.5.28 version:

PHP code specification and php code specification

PHP code specification and php code specificationNaming Conventions The. class. php class files are all suffixed with. class. php. They are named in the upper case by using the hump method, for example, Pay. class. php; the names of the classes are

Zend Framework implements Zend_View to integrate the Smarty template system. zend_viewsmarty

Zend Framework implements Zend_View to integrate the Smarty template system. zend_viewsmarty This article describes how Zend Framework integrates with the Smarty template system to implement Zend_View. We will share this with you for your reference.

Compile and install Nginx + PHP + MariaDB Development Environment on Mac OS, nginxmariadb

Compile and install Nginx + PHP + MariaDB Development Environment on Mac OS, nginxmariadb Because of Oracle's urine. Mariadb should replace mysql. So discard mysql 1. Compile nginxDownload nginx, openssl, and pcreWhen compiling openssl, a prompt is

Powerful time conversion functions of php, strtotime function of php

Powerful time conversion functions of php, strtotime function of php You can use strtotime to convert time strings of various formats into timestamps. Convert regular time format echo date('Y-m-d H:i:s', strtotime('2016-01-30 18:00')).PHP_EOL;echo

How to use Magic methods in php, magicmethods

How to use Magic methods in php, magicmethods In PHP, The Methods starting with two underscores _ are called magic methods, which play an important role in PHP. Magic methods include: _ Construct (), constructor of the class _ Destruct ():

The daily required verification code for php programming, and the php programming Verification Code

The daily required verification code for php programming, and the php programming Verification Code This article shares the php image verification code for your reference. The details are as follows: 1. Verification Code Image GenerationCaptcha. php

PHP intercepts the ie browser and reduces the source image. php intercepts the ie source image.

PHP intercepts the ie browser and reduces the source image. php intercepts the ie source image. This article describes how to use PHP to intercept ie browsers and narrow down the source image. We will share this with you for your reference. The

PHP File Cache smarty template application instance analysis, smarty application instance

PHP File Cache smarty template application instance analysis, smarty application instance This document analyzes the smarty template application of PHP File Cache. We will share this with you for your reference. The details are as follows: I. Use

Explanation of PHP syntaxes and php syntaxes

Explanation of PHP syntaxes and php syntaxes 1. Simple syntax rules (variable names are defined using curly brackets, applicable to all PHP versions ): $ A = 'flower'; echo "She has ed some $ as"; // invalid; the letter s is regarded as a valid

My websocket demo (php server) and websocketdemo

My websocket demo (php server) and websocketdemo Notice: Execute the php file through the command line, such as php-q c: \ path \ server. php.Access http: // 127.0.0.1/websocket/index. php through a local web server.Notice:Php5.3 or above is

PHP extension migration to PHP7 extension compatibility problem records, php7 compatibility

PHP extension migration to PHP7 extension compatibility problem records, php7 compatibility Some kernel methods provided during PHP 7 extension compilation are not fully compatible with previous PHP versions. Many method parameters have been

A Preliminary Study of Closure anonymous functions in php

A Preliminary Study of Closure anonymous functions in php When it comes to closures, you have to think of anonymous functions, also called closures. It seems that PHP closures are mainly implemented by them. Declare an anonymous function as follows:

Generate all lattice codes of n bits

This is similar to the implementation idea in the previous article. it does not use php bitwise operations and is less efficient. it fully reflects the conversion rules, basically: gray Code converts a Gray Code to a binary Code to a decimal Gray

Php calculates the difference between two dates: year, month, and day

In PHP programs, processing time is often encountered, for example, determining how long a user has been online and how many days has been logged on, the time difference between two posts or the log records between different operations. In this

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